# https://mp.weixin.qq.com/s/inW6PEb9aA4dtRx1DrcRRg

import time


def make_burger(order_num):
    print(f"Preparing burger #{order_num}")
    time.sleep(5)
    print(f"burger made #{order_num}")


def main():
    for i in range(5):
        make_burger(i)


if __name__ == '__main__':
    s = time.perf_counter()
    main()
    elapsed = time.perf_counter() - s
    print(f"Orders completed in {elapsed:0.2f} seconds.")
